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Rachel Sherhart, MD
Dr. Rachel Sherhart is a board-certified adult psychiatrist who has been in practice for over 4 years. She specializes in medication management with 30-minute follow-up visits. This may be accompanied by elements of supportive therapy, Acceptance and Commitment Therapy (ACT), Dialectical Behavior Therapy (DBT), and psychodynamic therapy. If more in-depth work is needed, she may refer patients to a collaborating psychotherapist. Dr. Sherhart received her medical degree from Texas A&M Health Science Center and completed her psychiatry residency training at the University of Texas Southwestern in Dallas, Texas. She has served as faculty at Texas A&M University College of Medicine, providing education and supervision for psychiatry residents and medical students. She has experience treating adult patients from many walks of life with a broad range of diagnoses, including depression, anxiety, bipolar disorder, ADHD, and trauma-related disorders. Dr. Sherhart has a passion for providing excellent patient care and education. Her goal is for patients to feel heard and find a safe place to discuss their concerns. She is motivated to work collaboratively with patients to find a solution that best fits their treatment goals and improves their overall quality of life.
Tulsie Patel, MD
Tulsie Patel is a board certified psychiatrist who treats adults. She graduated Cum Laude from Drexel University and attended medical school at the University of Miami Miller School of Medicine. She completed her psychiatry residency at the University of Texas Southwestern (UTSW) and was elected to serve as Chief Resident during her final year of training. She has worked as an outpatient psychiatrist in California and Florida and has experience in medication management, individual and group therapy, and transcranial magnetic stimulation (TMS). She is dedicated to constantly learning and has previously published numerous articles and book chapters on various topics in the fields of psychiatry, dermatology, and psychodermatology. She is also very passionate about education and medical journalism. During her residency training, she worked at ABC News in New York City as a member of their medical unit. She provided consultation on medical stories for programs including Good Morning America and World News with David Muir. She has published a number of articles on the websites for ABC News and Good Morning America. She also has experience presenting as an on-air expert for ABC News and for mental health podcasts. She is committed to continuously evolving as a provider in order to provide the best care for her patients. Her focus is always to provide patient-centered care by prioritizing open communication and collaboration with her patients. She has experience providing care for a variety of psychiatric illnesses. The conditions she treats include but are not limited to depression, anxiety, panic disorder, OCD, PTSD, and ADHD.
Christa DeFries, MD
Background and credentials
Dr. Christa DeFries is a board-certified Adult Psychiatrist. She earned her medical degree from UT Southwestern Medical School in Dallas, Texas, and completed her residency in Adult Psychiatry at Baylor Scott & White in Temple, Texas. Following residency, Dr. DeFries gained additional experience treating homeless and formerly homeless populations in New York City, particularly focusing on individuals with histories of trauma and substance addiction, prior to joining Talkiatry.
Treatment approach
Dr. DeFries practices Adult Psychiatry, employing an integrative treatment approach combining medication management, psychotherapeutic methods, and lifestyle modifications. She recognizes that each patient benefits from a personalized mix of these three aspects of care. Dr. DeFries specializes in treating diverse psychiatric conditions, including those related to trauma, substance addictions, and various mental health disorders.
What you can expect in a first visit
In a first visit with Dr. DeFries, patients can expect a comprehensive evaluation aimed at understanding their individual mental health history, specific concerns, and overall treatment goals. Dr. DeFries emphasizes an individualized approach, carefully exploring the best combination of medication, therapy, and lifestyle adjustments tailored specifically to each patient's needs. Patients can anticipate an empathetic and collaborative environment focused on their personal experiences and goals.
Why Talkiatry?
We’re a virtual mental health practice that makes it easy to find great care. We combine quality and convenience to help you thrive—faster. Our providers, like this one, are highly trained experts who specialize in medication management and collaborate with you on a treatment plan that fits your needs and comfort level.
Victoria Pan, MD
Dr. Pan is a board-certified psychiatrist with over 10 years of experience. She holds a Doctor of Medicine degree from UT Southwestern Medical School and completed her medical specialty training in the Department of Psychiatry at UT Southwestern Medical Center. She has served as faculty at UT Southwestern, teaching medical students and mentoring psychiatry residents.
Dr. Pan is a diplomate of the American Board of Psychiatry and Neurology. Dr. Pan specializes in medication management for adults with a broad range of psychiatric conditions, including anxiety, bipolar, depression, insomnia, PTSD/trauma-related disorders. Medication treatment may be complemented with elements of supportive psychotherapy, psychodynamic therapy, and cognitive behavioral therapy.
Dr. Pan works collaboratively with patients to develop evidence-based treatment plans tailored to their unique needs. If further psychotherapy is needed, she may recommend working with a therapist as well. Asking for help can be difficult, especially when it comes to mental health. During the first visit, patients can expect a welcoming space where they can share their concerns. The visit will also focus on a psychiatric evaluation covering symptom details, psychiatric and other medical history, prior treatments, and how the current symptoms affect the person as a whole.
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Ayanna Swinton Jamison, MD
Dr. Ayanna Swinton Jamison is a board-certified psychiatrist with over 18 years of experience in general, as well as child and adolescent psychiatry. She has extensive experience in counseling, and medication management. Dr. Jamison is committed to educating her patients about their illness and providing personalized care for each patient. Dr. Jamison received her undergraduate degree from Jackson State University. She graduated from Saint Louis University Medical School and completed her residency training in general psychiatry and child and adolescent psychiatry at the University of South Carolina. Dr. Jamison is a proud mom of four who enjoys spending time with her family, and attending her kids' sports events.
Osman Athar, MD
Dr. Osman Athar is board certified in General Psychiatry and board eligible in Consult-Liaison Psychiatry. He graduated with a Bachelor of Arts in English from Rice University and McGovern Medical School for his medical doctorate, and went on to complete a psychiatry residency at the University of Texas-Houston, where he served as a chief resident. Afterward, he completed a fellowship in Consult-Liaison Psychiatry at Louisiana State University - Ochsner Medical Center in New Orleans. Dr. Athar has experience in treating a wide variety of conditions, including Major Depression, OCD, Bipolar Disorder, ADHD, Eating Disorders, Anxiety Disorders, PTSD, Substance Use Disorders, Delirium, Dementia, and Mental Disorders due to Another Medical Condition. Dr. Athar primarily focuses on medication management in his practice but will typically also use supportive therapy and cognitive behavioral therapy skills with his patients in order to maximize wellness and recovery. Dr. Athar held an academic appointment at the University of Mississippi Medical Center where he was an assistant professor of psychiatry. He served as the clerkship director for the Medical Neuroscience and Behavior Course during his appointment, which required a six-week course for third-year medical students, which included four weeks of psychiatry education. During his appointment, Dr. Athar was also very active in resident education, focusing on topics related to consult-liaison psychiatry. Dr. Athar has experience in treating a wide variety of conditions, including Major Depression, OCD, Bipolar Disorder, ADHD, Eating Disorders, Anxiety Disorders, PTSD, Substance Use Disorders, Delirium, Dementia, and Mental Disorders due to Another Medical Condition. Dr. Athar primarily focuses on medication management in his practice.
Nidhi Sharoha, DO
Dr. Nidhi Sharoha is a double board certified psychiatrist in Psychiatry and Consultation Liaison Psychiatry. She completed her undergraduate training at Stony Brook University followed by medical school at New York Institute of Technology College of Osteopathic Medicine. She has completed both a Residency in Psychiatry and Fellowship in Consultation Liaison Psychiatry at Nassau University Medical Center.
Dr. Sharoha has held academic appointments at Stony Brook University Hospital, practicing as a consultant psychiatrist and Associate Director of Consultation Liaison Psychiatry Fellowship. “Dr. Sharoha has accrued experience and expertise in Perinatal Psychiatry through her training in CL psychiatry. Currently, Dr. Sharoha is serving as President Elect of Long Island District Branch of APA. She has formerly served as Associate Director of Clinical Education here at Talkiatry.” She has contributed to education, training and supervision of trainees and physicians throughout her career. She continues to stay up to date with current psychiatric knowledge.
She has a genuine interest in treating a vast array of psychiatric disorders including depression, anxiety, bipolar disorders, post-traumatic stress disorders, and obsessive compulsive and related disorders. She also has experience in treating patients with medical comorbidities and has training in issues related to women's health. Patients looking for a psychiatric provider will find that Dr. Sharoha has a gentle approach to diagnosis and management of her patients. She believes in the principle that body and mind are interconnected, which allows her to provide comprehensive care to all of her patients.
Brett Abernethy, MD
Background and credentials
Dr. Abernethy is a board-certified psychiatrist who received his medical degree from the University of Texas Medical School at Houston. He completed his internship at UT Southwestern in Dallas and earned a Master's of Public Health in Epidemiology and Occupational and Environmental Health from Texas A&M. He completed his psychiatry residency training at the University of Oklahoma Health Science Center. Dr. Abernethy has over 12 years of experience practicing psychiatry in various outpatient settings, including private practice and community mental health centers in Texas and Oklahoma, specifically reaching underserved communities. He has treated a broad spectrum of mental health symptoms among diverse populations, addressing issues ranging from mood and anxiety disorders to behavioral manifestations of Autism and other developmental disorders.
Treatment approach
Dr. Abernethy utilizes a collaborative and patient-centered approach to psychiatry, focusing primarily on medication interventions that align with each patient's unique treatment goals and clinical needs. He emphasizes cooperation with patients to effectively treat and reduce mental health-related symptoms. His practice centers around medication management, supplemented by supportive treatments tailored to individual needs. Depending on each patient’s circumstances, he may recommend additional support from individual, family, or group counselors and therapists to achieve optimal outcomes.
What you can expect in a first visit
In an initial visit, patients can expect a thorough, collaborative discussion focused on understanding their symptoms, goals, and clinical needs. Dr. Abernethy will evaluate the patient's condition to determine appropriate medication interventions and discuss personalized treatment recommendations. Typical follow-up visits are approximately 20-30 minutes in length. Depending on the severity and complexity of a patient's situation, referrals to additional counseling or therapy may also be suggested.
Why Talkiatry?
We’re a virtual mental health practice that makes it easy to find great care. We combine quality and convenience to help you thrive—faster. Our providers, like this one, are highly trained experts who speciualize in medication management and collaborate with you on a treatment plan that fits your needs and comfort level.
Onah Uwagbai, MD
Dr. Onah Uwagbai is a board-certified psychiatrist who earned her medical degree from St. George’s University School of Medicine. She completed her psychiatry residency at the University of Kansas Medical Center, where she served as Chief Resident at the Kansas City VA hospital and was recognized for Excellence in Scholarship. Most recently, she worked at the North Texas VA Healthcare System, caring for individuals with treatment-resistant depression and complex psychiatric needs.
Dr. Uwagbai has a passion for supporting individuals with mood disorders, anxiety, trauma, and women’s mental health. She believes healing is best achieved through compassion, collaboration, and respect. Patients can expect a warm, supportive environment where they feel heard and understood, with treatment tailored to their unique history and goals.
Dr. Uwagbai begins with a comprehensive evaluation to understand each patient’s needs and then develops an individualized treatment plan. She draws on evidence-based practices, including expertise in complex cases, and may incorporate both therapy and medication management. Her goal is to empower patients to take an active role in their care while fostering resilience, stability, and long-term wellness.
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Miranda Morgan, DO
Dr. Miranda Morgan is a board-certified psychiatrist licensed in New York and Texas. She is a Diplomate of the American Board of Psychiatry and Neurology and a member of the American Psychiatric Association. She earned her undergraduate degree in Psychology from The University of Texas at San Antonio and her medical degree from the Alabama College of Osteopathic Medicine. She completed her residency in psychiatry at Texas A&M University - Temple/Baylor Scott & White Hospital, where she was Recruitment Chief Resident.
Dr. Morgan is passionate about collaborative care and telemedicine, and has held positions in primary care mental health and collaborative care settings. She previously worked as staff psychiatrist at the Department of Veterans Affairs, and held an academic appointment as Clinical Instructor for the Department of Psychiatry at New York University Grossman School of Medicine.
Dr. Morgan describes her practice style as, “patient-centered, compassionate care tailored to each individual's unique mental health needs. As a psychiatrist, I am dedicated to helping my patients overcome their mental health challenges and achieve their goals.
Matthew Koller, MD
Background and credentials
Dr. Matthew Koller is a board-certified adult psychiatrist who completed his undergraduate training at The University of Texas at Austin. He earned his medical degree from The University of Texas Health Science Center at San Antonio and completed his general adult psychiatry residency at Baylor College of Medicine in Houston, TX, where he served as Chief Resident of Education in his final year of training.
Treatment approach
Dr. Koller believes that understanding a patient fully is essential before treatment begins, emphasizing a collaborative and patient-centered approach to care. His practice is primarily focused on medication management, but he also incorporates supportive therapy and other therapeutic modalities as needed. He may recommend including a therapist in the treatment plan to ensure comprehensive, well-rounded care. He has experience treating a wide range of mental health conditions, including depression, anxiety, insomnia, personality disorders, bipolar disorder, PTSD, and psychotic disorders.
What you can expect in a first visit
During the first visit, patients can expect a thorough and individualized psychiatric evaluation, where Dr. Koller takes the time to understand their symptoms, history, and treatment goals. He prioritizes open communication and shared decision-making, working closely with patients to develop personalized treatment plans. While medication management is the foundation of his approach, he remains flexible and adaptive, incorporating therapy and other interventions as needed to help patients achieve optimal mental health.
Why Talkiatry?
We’re a virtual mental health practice that makes it easy to find great care. We combine quality and convenience to help you thrive—faster. Our providers, like this one, are highly trained experts who specialize in medication management and collaborate with you on a treatment plan that fits your needs and comfort level.
Ye Kyung Song, MD
Dr. Ye Kyung Song is a board-certified psychiatrist with both an M.D. and a Ph.D. in medical humanities and ethics from the University of Texas Medical Branch. She completed her residency at Duke University and has experience practicing in both outpatient and inpatient settings. In addition to her clinical training, Dr. Song has pursued advanced training in several therapeutic modalities, including the Collaborative Approach to Management of Suicidality (CAMS) and Radically Open Dialectical Behavioral Therapy (RO-DBT).
Dr. Song takes a collaborative, values-driven approach to treatment, emphasizing partnership in decision-making and tailoring care to each individual’s needs. She uses medication thoughtfully and only when appropriate, considering the whole picture of a patient’s health and life. Her goal is to help patients understand the underlying reasons for their symptoms by examining patterns, conflicts, and meaning. She is committed to creating a safe and supportive environment where patients can explore their experiences openly.
During the initial appointment, Dr. Song focuses on understanding a patient’s clinical history, current concerns, and personal goals. Together with the patient, she develops an individualized treatment plan that clearly outlines areas of focus and aligns with the patient’s values and objectives. Her process emphasizes getting to the root “why” behind symptoms, while using evidence-based medicine and therapy modalities best suited for the situation. Treatment plans and medications are adjusted collaboratively over time to ensure ongoing support and progress.
Garrick Gaffney, DO
Dr. Garrick Gaffney is board certified in psychiatry by the American Board of Psychiatry and Neurology (ABPN). He earned his medical degree from Kansas City University and completed his psychiatry residency at John Peter Smith Hospital in Fort Worth, Texas. A combat veteran, he served in the U.S. Marine Corps, including a tour in Iraq, and was honored with the Navy and Marine Corps Achievement Medal and a Certificate of Commendation for exemplary leadership.
During medical school, Dr. Gaffney pursued advanced training as an Osteopathic Manipulative Medicine fellow. As a resident, he served as Chief Academic Resident and earned accolades such as Intern of the Year and Outstanding Educator of the Year twice consecutively.
Dr. Gaffney specializes in treating complex psychiatric conditions, including depression, anxiety, PTSD, OCD, bipolar disorder, and insomnia. He has presented case studies and quality improvement projects at national conferences, including the American Psychiatric Association (APA), Academy of Consultation-Liaison Psychiatry, and Association for Academic Psychiatry.
A proponent of holistic care, Dr. Gaffney integrates psychotherapy into medication management and emphasizes lifestyle modifications and evidence‑based integrative medicine.
New patients receive comprehensive evaluations to rule out medical causes of symptoms, followed by tailored treatment plans combining therapy, medication, and lifestyle adjustments. Follow‑up visits focus on symptom management through supportive, brief dynamic, or cognitive behavioral therapy, with frequent appointments until stabilization is achieved.
Dr. Gaffney is committed to collaborative, patient‑centered care that addresses both mental and physical well‑being.
Lisa Ekeanyanwu, MD
Background and credentials
Dr. Lisa Ekeanyanwu is a board-eligible psychiatrist who completed her psychiatry residency training at Stanford University. She has gained experience in a wide range of clinical environments, including inpatient and outpatient care, community mental health settings, emergency rooms, telehealth services, and international clinical fieldwork.
Treatment approach
Dr. Ekeanyanwu’s practice is centered on pharmacotherapy, which she integrates with supportive therapy, cognitive behavioral therapy (CBT), and psychodynamic therapy to provide comprehensive psychiatric care. She takes a collaborative and individualized approach, tailoring treatment to meet each patient’s unique goals and improve their overall quality of life. She has a special interest in cultural and micro-cultural influences on mental health and strives to provide culturally competent care that respects each patient’s life experiences and values. When she believes additional therapy may be beneficial, she may recommend incorporating a therapist into the care team.
What you can expect in a first visit
During the first visit, patients can expect a thorough evaluation where Dr. Ekeanyanwu carefully assesses their symptoms, medical history, and personal treatment goals. She fosters a collaborative and patient-centered environment, ensuring that each treatment plan aligns with the patient’s individual needs. She provides medication management along with therapeutic support and, when appropriate, may recommend additional therapy to optimize outcomes. Her approach prioritizes safe, effective, and culturally sensitive care that evolves to support patients throughout different stages of their lives.
Why Talkiatry?
We’re a virtual mental health practice that makes it easy to find great care. We combine quality and convenience to help you thrive—faster. Our providers, like this one, are highly trained experts who specialize in medication management and collaborate with you on a treatment plan that fits your needs and comfort level.
Jennifer Hailey, DO
Dr. Jennifer Hailey is a board-certified psychiatrist in Psychiatry. She completed her undergraduate training at Michigan State University followed by medical school at Nova Southeastern University College of Osteopathic Medicine. She has completed a residency in psychiatry at Michigan State University. Dr. Hailey has worked in many different settings including private hospitals, jails, military treatment facilities and private practice. She enjoys educating her fellow providers who specialize in psychiatry as well as other areas of medicine. She has a genuine interest in treating a vast array of psychiatric disorders including depression, anxiety, post-traumatic stress disorders, obsessive compulsive and personality disorders. She also has experience in treating patients with medical comorbidities and has training in issues related to women's health.
Gary Etter, MD
Gary Etter, MD is a board-certified psychiatrist with experience across outpatient, inpatient, and emergency settings, including many years within the John Peter Smith Healthcare System. He has also practiced in federal correctional psychiatric settings and outpatient care through Tarrant County MHMR. Dr. Etter has been extensively involved in psychiatric education for medical students and psychiatry residents. He has participated in organized psychiatry for many years through the Texas Society of Psychiatric Physicians, serving on multiple committees and previously as President of the Texas Psychiatric Society. He earned his medical degree from the University of Texas Medical Branch in Galveston and completed his psychiatry residency at Timberlawn Psychiatric Hospital in Dallas. He is a Distinguished Life Fellow of the American Psychiatric Association.
Dr. Etter values ongoing patient input and strives to create a collaborative treatment environment where patients are actively involved in decision-making. He emphasizes a warm, supportive approach that helps patients feel heard, respected, and understood throughout their care.
Dr. Etter begins by developing a thorough understanding of each patient’s psychiatric, medical, family, developmental, and substance use history, while also exploring the patient’s concerns and goals. He then works collaboratively with the patient to develop an individualized treatment plan tailored to their unique needs and objectives.
Find the right fit fast
Our process was built to help you get the care you’re looking for quickly, with personalized matches and easy online booking.
What psychiatry shouldn’t be
What you get with Talkiatry
Go from searching to scheduled in minutes
Tell us about you
Enter your location, insurance details, and what kind of care you’re looking for.
Get in-network matches
We’ll show you clinicians who take your insurance, specialize in your concerns, and have availability.
Get seen quickly
Great care shouldn’t mean a long wait. Our average time to a first visit is 6 days, not weeks or months.
FAQs
How does Talkiatry work?
Is there a cost to my health system?
Talkiatry is an online psychiatry practice designed to make high-quality mental health care more accessible. We’re 100% virtual, in-network with major insurance plans, and first appointments are typically available in days.
To get started, you’ll complete a quick online assessment to tell us what you’re looking for. We’ll match you with psychiatrists who are licensed in your state, in-network with your insurance, and experienced in treating your concerns. You’ll choose the clinician you’d like to work with.
Your first visit is an in-depth evaluation where your psychiatrist will listen, provide a diagnosis, and work with you to create a treatment plan tailored to your goals and preferences. You’ll continue seeing the same clinician over time, adjusting your plan as your needs evolve. Our team is always here to help with scheduling, insurance, and questions about your care.
Do you provide therapy?
Is there a cost to my health system?
Care at Talkiatry starts with psychiatry. If you already have a Talkiatry psychiatrist, they can refer you to one of our therapists if you’ve decided together that therapy is the right next step. However, you can’t see a Talkiatry therapist if you aren’t already seeing one of our psychiatrists.
What should I do if I’m having an emergency?
Is there a cost to my health system?
Talkiatry does not provide emergency care. If you or someone you know is in crisis, please visit your nearest emergency room, call 911, or call or text the Suicide and Crisis Lifeline at 988.
How much will my visit cost?
Is there a cost to my health system?
The majority of our visits cost patients $25 or less after insurance*, but your exact out-of-pocket cost depends on your plan. The best way to get a clear estimate is to contact your insurance provider directly. Here’s what to ask them:
- Do I have mental health benefits that include outpatient psychiatry?
- Is Talkiatry in-network for my plan?
- What’s my copay or coinsurance for outpatient psychiatry visits?
- Do I have a deductible? If so, how close am I to meeting it?
- Do I have an out-of-pocket maximum? If so, how close am I to reaching it?
- Are virtual or telehealth psychiatry visits covered the same as in-person care?
- Is prior authorization required for outpatient psychiatry?
- Can you provide a cost estimate for an in-network psychiatry visit using CPT code 99204?
- Can you provide a cost estimate for an in-network psychotherapy visit using CPT code 90833?
*Includes all patient costs from 9/24-9/25: copayment, deductible, coinsurance, and $0 payments. Excludes missed appt. fees. Your medical visit costs can vary depending on insurance coverage.
What if I don’t want to take medication?
Is there a cost to my health system?
Psychiatrists are medical doctors, and medication is often part of how they treat mental health conditions. At Talkiatry, your psychiatrist will start by listening and discussing your options with you. Medication is always your choice, but if it’s not something you’re open to considering, we may not be the best fit for ongoing care at this time.
How do I know if Talkiatry can help me?
Is there a cost to my health system?
Talkiatry provides virtual, in-network psychiatric care for people struggling with mild to moderate mental health issues. Here’s what we can help with:
- Anxiety
- ADHD (attention-deficit/hyperactivity disorder)
- Bipolar disorder
- Child & adolescent care
- Depression
- OCD (obsessive-compulsive disorder)
- Pregnancy & postpartum care
- PTSD (post-traumatic stress disorder)
- Substance use disorder
Our goal is to connect you with the best possible care for you. At your first visit, your doctor will confirm whether Talkiatry is the right fit. If they recommend in-person or higher-level care, they’ll guide you to the appropriate resources.
What if my insurance changes from Blue Cross Blue Shield?
Is there a cost to my health system?
Insurance changes are common, and we’re here to help. Talkiatry is in-network with thousands of plans. If your insurance changes, reach out to a Care Coordinator to update your information and confirm your coverage by calling 833-351-TALK (8255).
Do I still take the assessment if I’m already diagnosed with OCD?
Is there a cost to my health system?
Yes. Our online assessment is an important part of how we match you with the right psychiatrist. Your first visit will include a thorough evaluation so your psychiatrist can confirm your diagnosis and tailor your treatment plan to your current needs.
